[time-nuts] Next Aug 21 eclipse and time flow

[Tim Shoppa]

During regular night/day cycles I can just barely observe the night-day
shift in WWV propagation from Colorado to my location near Washington DC,
using the NTP WWV audio refclock. It amounts to a few hundred microseconds
of shift. I last touched that code about 15 years ago.

Now that I have a 10MHz GPS OCXO (well, I've had that for about 15 years
too, getting that was the reason I stopped dinking with the WWV audio
refclock) I wonder if there's some simple hardware I could build that would
let me do superior carrier-phase type measurements on WWV propagation. If I
could see the night-day shift more clearly then I might see an ionospheric
effect during the upcoming August 21 eclipse, which nicely traces a path
from west to east not too far off the line between Ft Collins and my
location.

Tim N3QE

On Sun, May 28, 2017 at 6:17 PM, iovane--- via time-nuts <time-nuts at febo.com
> wrote:

> On august 21 2017 a solar eclipse will sweep USA from coast to coast. A
> lifetime opportunity to do coordinated experiments to check this or that.
> One of the questions that doesn't have a final answer yet is whether or not
> solar eclipses could affect the flow of time. They exist conflicting
> reports: Negative: http://www.nature.com/nature/journal/v402/n6763/full/
> 402749a0.html Positive: http://home.t01.itscom.net/
> allais/blackprior/zhou/zhou-1.pdf          http://home.t01.itscom.net/
> allais/blackprior/zhou/zhou-2.pdfPersonally I believe that the positive
> results were due to spurious responses of the atomic clocks to something
> else than gravity, or the clocks failed for some reason (e.g. jumping
> crystals then steered), or lower quality clocks had been sold to China.
> Anyway the recorded data do show an anomaly.As far as I know, no atomic
> clock tests are planned anywhere for that circumstance, but sincerely I
> don't believe this is the truth.Maybe the US time-nuts community, using its
> plenty
>  of atomic clocks, could give the final answer doing tests during the
> above mentioned eclipse.US time-nuts, what about the idea of doing
> yourselves a large scale coordinated test? Or do you actually believe that
> this question is already definitively closed?(Even discovering that atomic
> clocks might respond to someting else than gravity would be of great
> interest).Antonio I8IOV
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